Yes, i've checked everything. Bios tried 2.3 and newest 2.4 (msi z77a-g43).
800mhz on gpu tested. No succes. But i hope that is software problem, not hardware, because bf3 and 3dmark11 full stable

I see your bios ( 2.4 ) is a little old ( 19 june ) while the problem appeared afterwards ( july/august ). You might get a new one sooner or later, but of course, I can't be sure.

Since I faced the problem, ASUS released 2 more BIOS and currently I don't have it anymore. A guy at Guru3d says AMD has responded about the issue and condirmed it's a M/B problem; you've to update your BIOS ( when it will be avalaible ).

I think it's related to the new boost function and the newer drivers we keep getting. Try 12.4 drivers and older for now, I'd say.Edited by Deo Domuique - 9/15/12 at 1:13pm

Hey guys, could I ask you to weigh in with your opinions between these three cards, which I think are good value.
I am also open to alternatives red or green
{Use: maxing out modern titles on a single monitor @1080p --> option to 2440p in the future}
I'm in the UK:
1) HIS HD 7950 IceQ BOOST 3072MB
2) HIS HD 7950 3072MB
3) OcUK HD 7950 3072MB -I think this is reference?
I also have access to these 7950 cards.
The Asus has good reviews, is it better value though?
Sincerely appreciate your help before the weekend ends, then I can blow my pay cheque

Interesting.
Can you try this? Follow the manual uninstall process from the AMD how to guide in my sig and clean the drivers out. Don't install new drivers, just boot to windows with the default vga. Let me know if your fan goes crazy.

Ok I have good news and bad news lol. Good news, me removing the drivers worked! I sat idle on my desktop for about 30 mins and my card didn't overheat nor did the fans go crazy. Bad news, after restarting I could no longer get in to Windows. A blue screen would flash real quick and then restart, so Im in the process of doing a restore. I will let you know how things go, and thx for the help!

I like HIS cards, as my 7870 IceQ X was wonderful (cool and quiet). HIS 7000 series cards tend to get good reviews. I love my ASUS DCII TOP GTX 670 too, but from what I understand, that card is a bit of a special case with it's super quiet 2-slot cooler. ASUS 7970 has a tripple-slot cooler and is not as quiet.

Ok I have good news and bad news lol. Good news, me removing the drivers worked! I sat idle on my desktop for about 30 mins and my card didn't overheat nor did the fans go crazy. Bad news, after restarting I could no longer get in to Windows. A blue screen would flash real quick and then restart, so Im in the process of doing a restore. I will let you know how things go, and thx for the help!

UPDATE: After about 40 restarts (literally) and some tears, I finally got back in to windows and I'm re-installing my drivers. I dont know if its something I did or if it was related to 12.7 beta/12.8, but this fan issue will just be a nuisance from now on lol. I will just turn my pc off when Im not gaming and just call it a day if starts up again.